An essay argues that excessive screen time negatively impacts teenagers' mental health. Which of the following would be the *most effective* type of evidence to support this argument?
A) A personal anecdote from a teenager who feels tired after using their phone a lot.
B) A quotation from a famous influencer who believes social media is harmful.
C) Statistics from a peer-reviewed scientific study linking increased screen time to higher rates of anxiety and depression in adolescents.
D) A historical account of how technology has evolved over the last century.
E) A poll conducted among friends about their screen time habits.